YIELD STRUCTURE IN SIBERIAN PINE AT THE SOUTHERN BOUNDARY OF ITS RANGE IN WESTERN SIBERIA

ISSN: 0024-1148 Russian Journal of Forest Science. 2013, No. 2, pp. 45-52

YIELD STRUCTURE IN SIBERIAN PINE AT THE SOUTHERN BOUNDARY OF ITS RANGE IN WESTERN SIBERIA

S. N. Velisevich
Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of the Russian Academy of Sciences
Academichesky ave. 10/3, Tomsk, 634055, Russia
E-mail: velisevich@imces.ru 

Received 20 September 2011

The structure of the Siberian pine (Pinus sibirica) yield is analyzed on different levels of its organization – shoot, cone, seed, and germ. The pine trees grow at the southern boundary of its range that includes adjacent dry and valley sites. The character of changes in the pine characteristics is considered to be dependent on soil moisture, location of the populations with regard to the range boundaries, and weather conditions in the period of forming the reproductive structures.

• Keywords: Siberian pine, yield structure, cones, seeds, germs.